The reaction would start by attacking chlorine first as it is the most electronegative element present.
Electronegativity is determined by the number of electrons it can take. According to the periodic table the electronegativity increases down the group.
In the given question, 3,4- dichloronitrobenzene is a cyclic compound, as benzene is itself a cyclic compound. The nucleophile would start attacking the chlorine group first as it is the most electronegative element of the group.
Whenever a nucleophile attacks, it first starts attacking the most electronegative element as it would easily take up electrons and would form a bulk.
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Does albumin have a quaternary structure?.
Yes, albumin have quaternary structure.
The egg white contains large number of protein called albumin. the four level of protein structures are : primary , secondary , tertiary , quaternary structure. the proteins are made up of single polypeptide chain . the some of proteins are made up of multiple polypeptide chain called as subunits. these subunit together for the protein structure called as the quaternary structure. the same type of the interaction which is tertiary are formed are present in between the subunits that form the quaternary structure.
Thus, the protein formed by the polypeptide chain called albumin have quaternary structure.
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Initially a beaker contains 225. 0 ml of a 0. 350 m mgso4 solution. Then 175. 0 ml of water are added to the beaker. Find the concentration of the final solution. What is the final volume? ml what is the new concentration? m.
If one has molecular weight in Daltons than diffusion or osmosis take place by molecules move around.
What is diffusion?
diffusion is a type of cellular transport. Since the diffusion does not require the energy (ATP) to take the place, it is considered as a form of passive transport. There are three types of diffusion: there are -simple diffusion, osmosis and facilitated diffusion. During the time of diffusion, molecules move from an area of high concentration to an area of the low concentration.
Explanation -
The rate of diffusion is the affected by the molecular weights of the molecules that is diffusing. The heaviest the solutes is, the slower the molecules moveing around. Slower the moving molecules diffuse at it slower rate than faster the moving ones. Molecules are that are lighter move in faster and therefore have an increases speed of the diffusion.
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From the following list of observations, select the one that best supports the idea that electromagnetic radiation has the properties of particles. Explain your reasoning.
(a) Black-body radiation.
(b) Electron diffraction.
(c) Atomic spectra.
(d) The photoelectric effect.
Photoelectric effect. So in the experiment, a certain light (i.e. EM radiation) was used to attempt to eject an electron from a metal. If light were a wave, then simply increasing the intensity would increase the energy. However, increasing the intensity of the light did not result in ejection. Only changing the type of light (lower wavelength) worked. This proves light's particle properties. Increasing intensity just increases the number of particles, nothing more. The right energy is needed before intensity becomes a factor. Hope this helped.
The photoelectric effect best supports the idea that EMR has the properties of particles. To explain the photoelectric effect, Einstein proposed that EMR consists of particles (or packets of energy called photons, each photon having a energy equal to hv.
The following list of observations, select the one that best supports the idea that electromagnetic radiation has the properties of particles : The Photoelectric effect.
The photoelectric effect best supports the idea of the electromagnetic radiation. In the photoelectric effect the electromagnetic radiation falls on the metal surface and the emission of electrons or ejection of electrons takes place. to explains the photoelectric effect Einstein says that EMR consist of the particles called ad the packets of energy or called as the photons. the energy of each photons is given as : hv.
Thus, The following list of observations, select the one that best supports the idea that electromagnetic radiation has the properties of particles : The Photoelectric effect.
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the atomic masses of 35cl (75.53%) and 37cl (24.47%) are 34.968 amu and 36.956 amu, respectively. calculate the average atomic mass of chlorine. the percentages in parentheses denote the relative abundances.
Chlorine has an average atomic mass of 35.4566amu. There are 34.968 amu and 36.956 amu, respectively, with the atomic masses of 35cl (75.53%) and 37cl (24.47%).
The weighted average of an element's naturally occurring isotopes' atomic masses is the element's average atomic mass. AM = (p1m1 + p2m2 +... + pnmn) / 100%, where AM is the average atomic mass, is the weight utilised in this calculation for the percentage abundance of a specific isotope in nature.
Chemical element chlorine has the symbol Cl and atomic number 17. It is the second-lightest halogen, and although it is between fluorine and bromine on the periodic table, most of its properties fall somewhere in the middle. At room temperature, chlorine is a yellow-green gas.
34.968*0.7553 = 26.411\s2. 36.965*0.2447 = 9.0453
Chlorine has an average atomic mass of (26.11+ 9.0453) = 35.4566amu
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gizmo warm-up a chemical change, (or chemical reaction) occurs when one or more substances, called reactants, are transformed into different substances, or products. in the chemical changes gizmo, you will look for evidence of chemical changes by looking at changes you can see, touch, or smell. to begin, check that reactant 1 is sodium and reactant 2 is water. sodium is a metal so soft you can cut it with a knife. click play (). what do you observe? the mass increased science. we took sodium and added it to the water. do you think a chemical reaction has taken place? explain.
When water and sodium react, caustic soda (NaOH) and hydrogen gas are produced.
Reaction of sodium and waterWater-insoluble hydrogen gas is formed and enters the atmosphere, so bubbles are observed coming out of the water when sodium reacts with it.
reaction product
Metallic sodium reacts rapidly with water to form caustic soda (NaOH) and hydrogen gas (H2). Since this chemical reaction is an exothermic reaction in which a large amount of heat is released from the solution, we can conclude that sodium hydroxide solution and hydrogen gas are formed by the reaction of water and sodium.
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observe: some chemical reactions release heat, and others absorb heat. in an exothermic reaction, heat is released and the temperature of the system rises. in an endothermic reaction, heat is absorbed and the temperature of the system decreases. to remember: exo-thermic
The statement ' some chemical reactions release heat, and others absorb heat. In an exothermic reaction, heat is released and the temperature of the system rises. In an endothermic reaction, heat is absorbed and the temperature of the system decreases' is true.
In the field of science, an exothermic reaction can be described as such a reaction in which heat is released. On the other hand, an endothermic reaction is such a reaction in which heat is absorbed from the environment.
As heat is released into the atmosphere, the temperature will rise for an exothermic reaction. On the other hand, as heat is taken, the temperature of the surrounding atmosphere will lower for an endothermic reaction.
The question will correctly be written as:
observe: some chemical reactions release heat, and others absorb heat. in an exothermic reaction, heat is released and the temperature of the system rises. in an endothermic reaction, heat is absorbed and the temperature of the system decreases. Is the observation true or false?
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in the laboratory, a quantity of i2 was reacted with excess h2 to give 0.310 moles of hi. it is also known that the percent yield of this reaction was 17.0%. how many moles of i2 reacted? (hint: write a balanced equation.)
Chemists require a measurement in order for a reaction to be successful this figure is known as the percent yield.
The theoretical yield: What does it mean?The maximum mass of a product that can be produced in a chemical process is known as the theoretical yield.The balanced chemical equation can be used to calculate it.The relative formula and mass of the product, as well as the mass and relative formula of the limiting reactant.Calculating the percent yield requires using stoichiometry to establish how much of the product should be produced.The percent yield is the actual yield to theoretical yield ratio expressed as a percentage:[tex]Percent Yield = \frac{Actual Yield}{Theoretical Yield}[/tex] × 100%To learn more about Theoretical yield refer to:
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Which weather condition is the team most likely studying?
The scientists are most likely studying precipitation (Option D).
What is precipitation?In meteorology, precipitation is any result of atmospheric water vapor condensation that falls under the gravitational attraction of clouds. Drizzle, rain, sleet, snow, ice pellets, graupel, and hail are the most common types of precipitation.
Rain gauges and snow gauges are two forms of precipitation measuring instruments, and several versions are created depending on the use. This chapter discusses rain gauges. Rain gauges are divided into two types: recording and non-recording.
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when 0.20 m nh4cl(aq) and 0.20 m naoh(aq) are mixed, the reaction represented by the equation above occurs and a strong smell of ammonia, nh3, is observed. based on this information, which of the following statements is true? A).
NH4+ (aq) acts as a Brønsted-Lowry base.
B
NH4+ (aq) is a stronger acid than H2O(l) is.
C
NH3(aq) is a stronger base than OH(aq) is.
D
NH, (aq) and Cl(aq) are a conjugate acid-base pair.
NH4+(aq)NH4+(aq) is a stronger acid than H2O(l)H2O(l) is.
An inorganic substance with the formula NH4Cl, ammonium chloride is a white, crystalline salt that is very soluble in water. Ammonium chloride solutions have a little acidic pH. It is referred to as sal ammoniac in the mineralogic form in which it occurs naturally. The mineral is frequently created by the condensation of gases obtained from coal on burning coal heaps. It can also be found near some kinds of volcanic vents. It mostly serves as a fertilizer and flavoring for some varieties of licorice. It is a byproduct of the interaction between ammonia and hydrochloric acid.
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a gaseous hydrogen and carbon containing compound is decomposed and found to contain 74.98% c and 25.02% h by mass. the mass of 245 ml of the gas, measured at stp, was 0.879 g. what is the molecular formula of the compound?
The butene chemical formula is (CH2)4 = C4H8.
How do you calculate a compound's molecular formula?Examples of carbohydrates include glucose and sucrose. Sucrose is almost exactly twice as big as glucose, despite the fact that their empirical formulas are fairly close.Some people can tell the difference between them just on taste, but it is not advisable to stroll around tasting chemicals.The best way to tell glucose from sucrose is to find their molar masses because this makes it easy to distinguish between the two different substances.A molecular compound's formula specifies the kind and number of atoms of each element that are contained within it.The molecular formula and the empirical formula are frequently the same.The chemical formula will always be some integer multiple (n) of the empirical formula.Since the empirical formula for a molecule equals n, the molecular formula is equal to n.Divide the empirical formula mass, EFM, by the compound's molar mass, MM, to obtain the integer multiple, n.n=MM(molarmass)/EFM(empiricalformulamolarmass)The empirical and molecular formulas for methane, acetic acid, and glucose, as well as different n values, are compared in Table 6.9.1. Since methane only contains one carbon atom, its empirical formula, CH4, is also its chemical formula. The empirical formula and the molecular formula are sometimes merely multiples of one another, though. Acetic acid is the main organic acid found in vinegar. It has the chemical compound C2H4O2.Glucose, a simple sugar, serves as one of the primary sources of energy for cells. It has the chemical formula C6H12O6. They both have the same empirical formula, CH2O, despite the fact that they are quite different molecules.Example
100 g of gas are used.
C = 85.63 g / 12 g/mol = 7.1358 mol when the proper atomic mass is divided by it.
H = 14.37g/1g/mol = 14.37mol
C = 1 and H = 2 divided by smaller division
Data formula for empirical research: CH2
The volume of one mole of gas is 22.4 L at STP, or 22 400 mL.
22400 mL divided by 258 mL and 0.646 g, or 56.868 g/mol, is the gaseous mass per mole.
CH2 mass in formula equals 14g/formula units in 1 mol, which is equal to 56.868 g/mol/14g/formula unit, or 4formula units per mol.
(CH2)4 = C4H8 is the butene chemical formula.
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How do you calculate the relative atomic mass of bromine?.
The relative mass of the bromine is calculated by Average weighted mass of bromine relative to the mass of the bromine.
You can measure the mass of one isotope of the element (isotopic mass) or you can take a sample of the element that has multiple isotopes in it and calculate the mean average atomic mass of the sample (average atomic mass) . Relative atomic mass of an element is given in the periodic table. It is also called relative atomic weight. The relative atomic mass of an element is the weighted average of the masses of the isotopes in the naturally occurring element relative to the mass of an atom. We can estimate the the relative atomic mass or the atomic weight of an element E with the naturally occurring isotopes and with the respective abundances of A%, B%, C% and like that.
relative atomic mass =( A /100× a)+ ( B / 100× b) + ( C/100 × c)
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how many molecules of each of the cofactors are produced when these two acetyl-scoa molecules pass through the citric acid cycle?
Cofactors are produced when these two acetyl-scoa molecules pass through the citric acid cycle is ,the passage of two acetyl-CoA through the citric cycle creates 2 ATP, 6 NADH, and 2 FADH2
What is Molecules?
The smallest unit of a substance that retains its composition and properties is a molecule. It is constructed of two or more atoms connected by chemical bonds.
Atoms are the fundamental unit of an element. They consist of a nucleus that is encircled by electrons. If an atom's electron shell is not quite complete, it is said to have valence electrons. When two or more atoms collaborate to share their valence electrons from the outer shell, a chemical (covalent) relationship is established and a lower energy state is reached. Atomic bonding causes the release of energy in an exothermic reaction.
When only two atoms join, they form diatomic molecules. Carbon monoxide (CO), which consists of a single carbon atom and a single oxygen atom, is an illustration of a diatomic molecule. It is known as a homonuclear diatomic molecule if the two atoms are from the same element, such as oxygen (O2) and nitrogen (N2). More than two atoms make up polyatomic molecules like water (H2O) and carbon dioxide (CO2). Polymers are larger molecules that can contain thousands of atoms.
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What is the most effective chemical sanitizer?.
Due of its excellent effectiveness and low cost, chlorine is the most popular chemical sanitizing agent. Liquid chlorine is one example of a typical chlorine compound.
What distinguishes disinfection from sanitizer?Chemicals used in sanitizing eliminate microorganisms from surfaces. The purpose is not to eradicate viruses. The EPA does register sanitizing products. Through the use of chemicals, surfaces are disinfected of viruses and germs.
Which sanitizer—spray or gel—is preferable?According to studies on the effectiveness of soap and anti-bacterial hand rubs, gels are more effective at removing bacteria from hands than sprays. Gel hand sanitizers reduced transitory hand germs by 80% whereas spray sanitizers lowered bacteria by 71%, according to a study by Truitt and Goldwater.
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Complete the table of bond energies and bond lengths. 125 pm 145 pm 167 kj/mol 942 kj/mol 110 pm 418 kj/mol.
N-N: 145 pm and 167 KJ/mol
N=N: 125 pm, 418 KJ/mol
And N2: 110 pm , 942 KJ/mol
Explanation: Bond length is inversely proportional to bond energy.
Greater the bond length, the smaller the bond energy, and vice-versa.
In molecular geometry, bond length or bond distance is described because of the average distance among nuclei of bonded atoms in a molecule. It's far a transferable belonging of a bond between atoms of constant kinds, exceptionally independent of the relaxation of the molecule.
The bond period is described because of the equilibrium distance between the nuclei of bonded atoms in a molecule. The larger the size of the atom, the longer the bond length
The longest bond is taken into consideration to be a carbon-carbon bond, found in diamonds. Its duration is 154 pm. It's by far the longest because of the three-dimensional structure of a diamond, and the carbon atoms bonded via covalent bonds.
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What happens to the reactivity left to right in a period?.
In a periodic table, reactivity falls off to the right. A tabular representation of the chemical elements is known as the periodic table, or periodic table of the (chemical) elements.
It is commonly regarded as an icon of chemistry and is utilized extensively in physics, chemistry, and other sciences. Down in periodic table, reactivity lessens. Because group 7 elements get an electron in reaction, this occurs. The quantity of electron shielding rises as you advance down the group, reducing the electron's attraction to the nucleus.
In a period, the reactivity of non-metals rises from left to right, whereas in a group, it falls as we move down the group because the propensity to take electrons declines. Is called as reactivity.
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The complete question is-
What happens to the reactivity left to right in a periodic table
1. which material property of glasses allows them to be expanded to large dimensions by blowing (i.e. bottle making)? can metals undergo such behavior as glass?
The ability of glass to behave in some kind of a superplastic manner and to experience extremely large uniform elongations above high temperatures is a feature that makes it possible to produce bottles.
A material? What would you mean by that?The term "material" describes something that is used to create another item. Cloth or any other item formed of matter that exists throughout the physical world can be referred to as material. As just a noun and also an adjective, "material" has several more meanings.
What kinds of materials are there?Metals, polymers, plus ceramics are the three main categories of materials. Steel, fabric, and ceramics are a few examples of them. These classes often have quite distinct origins, traits, and uses.
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Estimate the change in enthalpy and entropy when liquid ammonia at 270K is compressed from its saturation pressure of 38/ kPato 1200 Wa. For saturated liquid ammonia at 270K,Vl=1.551×10−3m3kg−1, and β=2.095×10−3K−1.
The change in enthalpy and entropy when liquid ammonia at 270 K is compressed from its saturation pressure of 381 KPa to 1200 KPa (in the question / and w are the typo mistakes) will be -2.66 × 10⁻³ KJ/Kg.K
Initial volume (V1) = 1.551 × 10⁻³ m³Kg⁻¹
β = 2.095 × 10⁻³K⁻¹
ΔH = CpΔT + [V-T(ΔV/ΔT)]ΔP
ΔS = CpΔT - (ΔV/ΔT)p ΔP
For isothermal conditions
ΔH = [V-T(ΔV/ΔT)]p ΔP
ΔH = V - (1 - βT) ΔP
Let V and β constant
ΔH = V (1 - βT) ΔP
ΔH = 1.551 × 10⁻³ m³Kg⁻¹ [1 - ( 2.095 × 10⁻³ × 270)] (1200 - 381)
ΔH = 0.557 KJ/Kg
Now calculate dS
ΔS = -(ΔV/ΔT)p ΔP = - βV ΔP
ΔS = βV ΔP
ΔS = -1.55 × 10⁻³ × 2.095 × 10⁻³ (1200 -381)
ΔS = -2.66 × 10⁻³ KJ/Kg.K
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What is the use of Brainly?.
Brainly is a platform where students, parents, and teachers can assist others with their homework questions. The website is designed to help students improve their skills in subjects such as English, mathematics, science, and social studies.
"Brainly is an excellent website for getting assistance with any homework assignment." There is a wonderful community that responds to your questions promptly, as well as a community of moderators who keep the site safe for all users." Free Homework Help- Brainly Basic is completely free! 24/7 Homework App - Unrestricted access, anywhere and at any time. Superfast, Homework Answers and Explanations - Questions are answered in minutes and moderated.
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Answer:
to help you find answers to your questions.
Explanation:
why do reactions of the alkaline earth metals differ from those of the Group 1 metals?
Answer:
Alkaline earths have larger lattice energies than alkali metals due to small size and high charge. Hence, alkaline earth metal hydroxides have lower solubility than alkali metals.
Answer:
hope this will help youExplanation:
alkaline earth metals have two valance electrons whereas group 1 metals(Alkali metals) have one valance electrons.so, it takes more energy to remove two valance electrons from an atom than one valance electrons.therefore the reactions of the alkaline earth metals are differ from those of the group 1 metals( Alkali metals).One ounce of solution x contains only ingredients a and b in a ratio of 2:3. One ounce of solution y contains only ingredients a and b in a ratio of 1:2. If solution z is created by mixing solutions x and y in a ratio of 3:11, then 2520 ounces of solution z contains how many ounces of a?.
Then 2520 ounces of solution z contains ounces of a is 876 ounces.
given that ;
x contains a and b in the ratio = 2:3
y contains a and b in the ratio = 1:2
z contains the a and b in the ratio 3:11, that, means in 14 parts of solution.
therefore, 2520 ounces solution of z,
x = ( 2520 × 3 ) / 14 = 540
y = ( 2520 × 11 ) / 14 = 1980
x = 540 (2/5) = 216
y = 1980 / 3 = 660
thus, One ounce of solution x contains only ingredients a and b in a ratio of 2:3. One ounce of solution y contains only ingredients a and b in a ratio of 1:2. If solution z is created by mixing solutions x and y in a ratio of 3:11, then 2520 the ounces of solution of z = 876
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G proteins are a family of receptor proteins that are involved in transmitting signals from outside a cell to inside a cell. When a signaling molecule binds to a G protein, the G protein is activated. The G protein then activates an enzyme that produces a second messenger called cAMP.
Which of the following describes a critical role of cAMP during the transduction stage of a G protein signal transduction pathway?
cAMP results in the activation of an enzyme that amplifies the signal by acting on many substrate molecules.
cAMP results in the activation of an enzyme that amplifies the signal by acting on many substrate molecules.
This G protein - coupled receptor signaling mechanism involves the following events. When the ligand or first messenger binds to the receptor, the receptor changes its conformation and binds to the G protein complex. there is a molecular substitution in the Gα subunit GDP is replaced by a GTP. This replacement causes the activation of the Gα subunit. The active Gα subunit then separates from the β and γ subunits and moves laterally in the membrane to activate an effector. When the interaction is completed, the GTP bound to the Gα subunit is hydrolyzed back to GDP and dissociated from Gα.The two most common messengers are cAMP and calcium. This results in the activation of an enzyme.
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Homonuclear dianions contain 2 atoms of the same element and an overall charge of -2. some dianions are stable enough to exist in compounds, while others are unstable and have only been detected in the gas phase. The bond order of the molecular ion NZ is Х For comparison, the bond order of the molecule N is
B2 has a bond order of 1.
Bond order is the number of electron bonding pairs that exist between two atoms. An unmarried bond has a bond order of one in a covalent bond between atoms, a double bond has a bond order of two, a triple bond has a bond order of three, and so on.
Calculation:-
for b2 = 1s2 1s*2 2s2 1s*2 2Px1 = 2Py1
(Nb - Na)/2 bond order
= 6 - 4 /2
= 1.
Bond order, as described by Linus Pauling, is defined by the difference in the number of bonds and anti-bonds. The number of electron pairs between two atoms determines the bond order. In diatomic nitrogen NN, for example, the bond order between the two nitrogen atoms is three.
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the index of refraction of carbon tetrachloride is 1.461. determine the speed of light in carbon tetrachloride.
Carbon tetrachloride has a refractive index of 1.461. In carbon tetrachloride, light will travel at a speed of 2.05 x 108 m/s.
What is the purpose of carbon tetrachloride?
Carbon tetrachloride, sometimes known as carbon tet, is an odorless, colorless liquid that is non-flammable. Prior to 1970, both commercial and domestic usage of carbon tet as a cleaning agent was common. The substance was employed as just a grain fumigant up to 1986. The production of rocket fuel and other industrial compounds still uses carbon tet.
Does carbon tetrachloride harm people?
The kidneys and liver could be gravely harmed by breathing carbon tetrachloride. Other side effects include fatigue or lightheadedness, headache or vertigo. Some individuals who breathe carbon tetrachloride appear confused. Additionally, vomiting and stomach pain might result from breathing carbon tetrachloride.
Briefing:
c = 3 x 10^8 m/s
μ = c / v
where, μ is the refractive index, c be the velocity of light in air and v be the velocity of light in the medium.
μ = 1.461
1.461 = 3 x 10^8 / v
v = 3 x 10^8 / 1.461
v = 2.05 x 10^8 m /s
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which nonrenewable resource cannot be recycled? responses copper copper aluminum aluminum oil oil iron
Oil is a nonrenewable resource that cannot be recycled.
In the field of physics, oil can be described as a source of energy that comes from fossil fuels. All of the energy resources that come from fossil fuels are non-renewable as they are made from the dead remains of plants and animals that died a long time ago.
Among the options provided above, all are metals except oil. Metals can be recycled by burning them and shaping them into something useful.
However, fossil fuel resources cannot be recycled as the ones used are all consumed and burned up into the atmosphere.
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which of the following statements regarding the behavior of real gases is false? which of the following statements regarding the behavior of real gases is false? deviations from ideal gas behavior are more pronounced at high pressures because the molecules experience greater attractions to one another. deviations from ideal gas behavior are more pronounced at low temperatures because the molecules experience greater attractions to one another. as the attractions between molecules increase, the value of the constant b in the van der waals equation increases. deviations from ideal gas behavior are more pronounced at high pressures because the fraction of space occupied by molecules becomes non-negligible.
The statement regarding the behavior of real gases which is false is: As the attractions between molecules increase, the value of the constant b in the van der Waals equation increases; option C is correct.
What are ideal gases?Idea gases refer to any gas whose molecules occupy negligible space and have no intermolecular interactions and thus obey the gas laws perfectly.
The ideal gas equation is given below as follows:
PV = nRT
where:
P is pressure of the gas
V is the volume of the gas
n is the number of moles of the gas
R is the molar gas constant
T is the temperature of the gas
In reality, though, no gas exhibits ideal behavior because intermolecular forces exist between the molecules of gas, and these gases are known as real gases.
Hence, the following conditions apply to real gases:
deviations from ideal gas behavior are more pronounced at high pressures because the molecules experience greater attraction to one anotherdeviations from ideal gas behavior are more pronounced at low temperatures because the molecules experience greater attraction to one another.deviations from ideal gas behavior are more pronounced at high pressures because the fraction of space occupied by molecules becomes non-negligible.Learn more about ideal gases at: https://brainly.com/question/20348074
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Is alcohol free a trend?.
People drink them carefully. And that has completely changed now. The non-alcoholic trend started a year or two before the pandemic. Non-alcoholic bars have sprung up in some cities for the so-called sober curious and continue to grow at a rapid pace.
This category is growing not because the consumer suddenly decides to quit alcohol, but because the consumer who drinks alcohol wants his NA option which tastes great like Heineken 0.0 in his life. It's because he's found it fits the style he said Manso Salinas. The term alcohol-free can only be used in the United States if the product does not contain detectable alcohol.
Can lead to traffic accidents violence alcoholism and other health problems. Drinking at a young age greatly increases the risk of developing alcohol problems later in life. Talking openly to children about the dangers of alcohol use early on can help prevent them from developing drinking problems.
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For which of these sets of data would all the points be displayed on a scatterplot if the window size on a regression calculator were set to 5 less-than-or-equal-to x less-than-or-equal-to 15; 25 less-than-or-equal-to y less-than-or-equal-to 75?
Answer:
This is the correct answer:
The table with the following:
X=6,7,9,11,13,14
Y=27,33,39,49,58,71
Lol, I didn't realize that was all this was.
Anyways, the table that matches that is correct, that's actually a bit obvious. The numbers you gave me are parameters, a limit. The numbers for x per y have to fall between those numbers listed.
determine the molarity of a h2so4 aqueous solution that is 12.5% by mass given that its density is 1.113 g/cm3.
The molarity of the sulphuric acid is 1.426 moles/ L.
What is the molarity (M) of a solution?
It is the number of moles of solutes per liter of solution.
The solution is a mixture of solute and solvent.
Molarity can be calculated by using the following formula:
[tex]M= \frac{n}{V}[/tex]
Where,
M= Molarity of the solution
n= Number of moles of solute
V= volume of solution in liters
Calculation:
12.5% of [tex]H_{2} SO_{4}[/tex] means 12.5 g of sulphuric acid are present in the 100g solution.
Hence, the mass of sulphuric acid= 12.5 g
The mass of the given solution= 100 g
The density of the given solution= 1.13 g/[tex]cm^{3}[/tex] = 1.13 g/ml
The volume of the solution can be calculated using the following formula:
Volume = [tex]\frac{Mass}{Density}[/tex]
The volume of 100g of the solution = [tex]\frac{100}{1.113} =89.84 ml[/tex]
The volume (V) of solution in liters= 0.89L
The number of moles (n) of sulphuric acid = [tex]\frac{12.5}{98} = 0.127 moles[/tex]
Hence, the Molarity of the given solution = [tex]\frac{0.127}{0.089} = 1.426 moles/L[/tex]
The molarity of the sulphuric acid is 1.426 moles/ L.
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A student prepares 100 mL of a 0.10 M solution of sulfadiazine The molecular weight of sulfadiazine is 250 g/mol. What volume of a 0.25M potassium hydroxide solution is needed to deprotonate 50% of the solution of sulfadiazine?
It can be summed up as the mass of solute dissolved in a 100 mL volume of solution. Therefore, 75 g of NaOH would be present in 300 ml of a $25 (m/v) NaOH solution.
Caustic Soda Solution (NaOH 50%) Caustic Soda Solution is a clear, flavorless, odorless liquid that has a slight viscosity. Any ratio results in its miscibility with water. Caustic soda solution reacts strongly with alkaline and is extremely corrosive to a variety of materials.
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Using what you have learned about the nitrogen cycle, what do you predict are the o2 levels in the river?.
Low - The generation of nitrates (NO 3-) requires oxygen, so the oxygen levels will be low.
What predicts are the o2 levels in the river?.Nitrates are created when oxygen present in water reacts with ammonia. Not the oxygen in the water molecule, but rather the dissolved oxygen is the one that reacts with the ammonia. Aquatic animals breathe in this oxygen to survive. The formation of nitrates will result in a decrease in the amount of dissolved oxygen, which suffocates marine species and has a negative effect on them. This will also damage the ecosystem as a whole.Ammonia reacts with oxygen in water to generate nitrates. It is the dissolved oxygen, not the oxygen found in water molecules, that reacts with ammonia. Low - Oxygen will be in short supply because the production of nitrates (NO 3-) requires it.The complete question is :Nitrates are made by converting ammonia (NH3) to nitrite (NO2-) and then to nitrate (NO3-). What do you predict the O2 levels in the river will be? High - Nitrate (NO3-) contains more oxygen atoms than ammonia (NH3), so the O2 will be high. Normal - Even though oxygen atoms are added to nitrogen during the nitrogen cycle, the levels of O2 in the water will be normal. Low - The generation of nitrates (NO3-) requires oxygen, so the oxygen levels will be low.
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